Tiffany Houghton Takes a HUGE Bite of Pizza!

Cheese, please! Tiffany Houghton celebrated her last night on MKTO's American Dream Tour with what else (?) -- an amazing pizza party! "Team Tiff knows how to throw a pizza party!" she captioned this silly pic of her taking a gigantic bite. Umm... can we get in on this yummy-looking pizza party?!

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